Product Guides
Teflon (PTFE) Spray Guide: Dry-Film Lubricant Uses, Applications and Mistakes
Teflon spray (PTFE spray) is a dry-film lubricant — slippery, dust-rejecting, ideal for tracks, locks, sliding rails and treadmill belts. Forum-validated guide covering wet vs dry PTFE, when it wins over silicone/grease, lock and bike-chain debates, treadmill warnings, NSF H1 food-grade applications, and the real reasons it sometimes attracts dust. CRC range stocked at AIMS Industrial.
Read moreProduct Guides
freeze-spray-guide
Freeze spray flash-cools electronics, sensors and seized fasteners to around minus 50°C. The right way to use it for hunting heat-related intermittent faults, the propellant safety difference (HFC-134a vs HFC-152a), and the AIMS Industrial range — CRC, Dy-Mark and Loctite LB 8040.
Read more
CRC Brings Back the Joy of Maintenance
Maintenance activities always sound like a big chore, but not anymore. These products from CRC can make your tasks easier: CRC Auto AC Pro Cleaner CRC Red Lithium Grease CRC 5-56 Multi-Purpose Lubricant with PermaStraw™ anchor" id="auto-ac-pro-cleaner">CRC Auto AC Pro Cleaner You should always keep your car's air-conditioning system clean for maximum efficiency all year round. Now, you can do that more easily with the CRC Auto AC Pro Cleaner. Benefits: Cleans and sanitizes vehicle air-conditioner without having to disassemble any major parts of the system – you just have to pop out the cabin filter to access the air inlet Thoroughly cleans with its foaming formulation Comes with a 45 cm hose applicator for easy application Kills mould and bacteria Eliminates odours and other unpleasant smells in the cabin Leaves long-lasting protection and a pleasant fragrance The CRC Auto AC Pro Cleaner is a cost-effective AC maintenance solution for both passenger and commercial vehicles. How to use the product: Make sure the vehicle is parked in a properly ventilated area. Pop the bonnet to help ventilate out the foam you will apply in step 7. Make sure the engine and all electrical installations in the vehicle are switched off. Remove the cabin air filters and other filter systems. Shake the can well and attach the hose applicator / extension tube to the can nozzle. Insert the extension tube about 30cm into the air inlet of the AC system. Spray the product until the system is full of foam. During the complete operation and until total evaporation of the active foam, make sure the workspace is ventilated and the bonnet left open. Leave it to work for at least 30 minutes (during this period, the foam will discharge through the AC drain). Turn on the engine and let it idle for 10 to 20 minutes, with the heating and ventilation system set to maximum. Make sure the evaporator is dry. Replace the cabin air filter. Don’t forget to close the bonnet. Important: This is a professional service product and should only be used by trained professionals. Buy the CRC Auto AC Pro Cleaner. CRC Red Lithium Grease Red Lithium Grease is CRC’s heavy-duty, multi-purpose NLGI 2 grease. It is formulated with anti-oxidation, anti-rust and anti-wear additives, so you can be sure your equipment always performs at its peak. Benefits: Withstands extreme pressure and temperature (effective from -35°C to +149°C) Offers a long-lasting lubricating protection Protects against rust and corrosion Resists sling-off Resists moisture, water and detergents, so it won’t wash out Stays in place, thanks to its high tackiness Long service life Some popular applications: Assembly plants Automotive Bearings Construction Drying ovens Electric motors Kilns Mining Metal production Off-road operations Pumps Reapers Water pumps Buy the CRC Red Lithium Grease. CRC 5-56 Multi-Purpose Lubricant with PermaStraw™ (New look) Your favourite “toolkit in a can” got a new look in May 2022. What’s new: The 5-56 now comes with PermaStraw™ Dual-Action Spray System (one-piece actuator with two-way spray that ensures the straw stays in place) The Marine 66 is now the 5-56 Marine Benefits: Restores smooth action by penetrating rust to get rid of squeaks and squeals without the need for disassembly Eliminates (and prevents) moisture in wet equipment Frees up components bonded by dirt and scale Lubricates contacts and joints to restore smooth action Protects metals against corrosion Minimises potential breakdowns caused by harsh environmental exposures such as high humidity Buy the CRC 5-56 Multi-Purpose Lubricant or the PermaStraw version. AIMS' Note on Safe Use of Lubricants Protective gear: Protect your skin and eyes! Wear chemical-resistant gloves to prevent skin irritation or absorption of chemicals. Safety glasses or goggles provide essential eye protection. Additionally, consider using a respirator if fumes are particularly strong or you are working for an extended period. Labels and instructions: Before using any product, carefully read the instructions and safety warnings on the label. Follow the specific guidelines for usage, proper handling and disposal. Check for ‘use by’ dates. Fire hazards: Many parts cleaners and lubricants are flammable. Keep them away from open flames, heat sources, and anything that could cause a spark. Store these products in a cool, dry location in their original containers, out of the reach of children and pets. Environment: Choose less toxic and environmentally friendly options whenever possible. Make sure there are no open flames or anything that can ignite flammable substances. Dispose of used products and empty containers responsibly according to the instructions or your local hazardous waste guidelines. Ventilation: When working with chemicals that release strong fumes, always work in a well-ventilated area, preferably outdoors or in an open area. If you are working indoors, make sure that the windows are open and consider using fans to increase airflow and disperse / vent out the fumes. Need to deal with rust? Our Rust Treatments collection covers removers, converters and protective undercoats. Share: Share on Facebook Share on X Pin on Pinterest Previous Post Quick and Easy Electric Motor Selection Guide Next Post How to Identify High Tensile Bolts Related Posts bordo Reciprocating Saw Blade Guide: TPI Selection, Bi-Metal vs Carbide, Wood/Metal/Demolition Blade Choice May 11, 2026 AIMS Industrial bsp Grease Nipple & Zerk Fitting Guide: Thread Sizes, Types, BSP vs UNF & How to Identify May 11, 2026 AIMS Industrial bolt-extractor Bolt Extractor Guide: Easy-Outs, Spiral Flute, Multi-Spline & Bolt Extractor Sockets May 11, 2026 AIMS Industrial People Also Ask — CRC Maintenance Products Q: What is CRC 5-56 used for? CRC 5-56 is a multi-purpose maintenance spray used for loosening seized fasteners, displacing moisture from electrical components, lubricating cables and hinges, and providing short-term corrosion protection on metal surfaces. It is one of the most widely used maintenance sprays in Australian workshops and trades. Q: What is the difference between CRC 5-56 and CRC White Lithium Grease? CRC 5-56 is a light penetrating oil and moisture displacer suited to freeing seized parts and general lubrication where a thin oil film is adequate. CRC White Lithium Grease is a heavier semi-solid grease that stays in place under higher loads and provides longer-lasting lubrication for chassis fittings, hinges, slides and components that require a grease rather than an oil. Q: Can CRC Brakleen be used on all brake components? CRC Brakleen is designed to remove grease, oil, dust and brake fluid residue from disc rotors, drums, callipers and pads. It evaporates cleanly without leaving residue. It should not be used on rubber brake lines, seals or flexible hoses without checking compatibility, and should not be inhaled in confined spaces due to solvent content. Q: What CRC products are suitable for electrical applications? CRC QD Electronic Cleaner and CRC Contact Cleaner are designed for cleaning electrical contacts, circuit boards and connectors. They evaporate quickly, leave no residue and are safe for most electronic components when used correctly. CRC 5-56 can be used sparingly for moisture displacement in electrical connectors but is not a substitute for a dedicated electronic cleaner where residue-free results are required.
Read moreParts Washer Guide: Solvent vs Aqueous Selection
Parts washers: solvent vs bioremediation, CRC SmartWasher and Purasolve range compared, sizing by workshop volume, disposal economics and AS 1940 compliance.
Read moreContact Cleaner Guide: AS/NZS 3000 Compliance, MAF Sensor Warning & Electrical Selection
Contact Cleaner Guide: Electrical Contact Cleaner, Plastic-Safe Use, Energised Equipment & AU Brands May 11, 2026 AIMS Industrial Contact cleaner is a fast-evaporating dielectric solvent designed to clean electrical contacts, switches, relays, connectors and electronic assemblies without leaving conductive or insulating residue. Used in workshop maintenance for ECU connectors, fleet vehicle wiring loom faults, motor servicing, audio equipment, and electronics repair — but the wrong product, the wrong technique, or the wrong moment can damage plastic enclosures, dissolve wire markings, or compromise dielectric properties. This guide covers what contact cleaner actually is, when to use it versus brake cleaner versus WD-40, plastic safety, AS/NZS compliance for energised work, the CRC and WD-40 brand range stocked at AIMS, and the common mistakes that cost electronics technicians their warranty claims. AIMS Industrial stocks the full range of industrial electrical contact cleaners across CRC, WD-40 Specialist, Molytec and Dy-Mark Protech — plus the CRC Lectra Clean electric motor and equipment cleaner range for motor-specific applications. Contact the AIMS team or call (02) 9773 0122 for technical selection advice or bulk supply. Electrical Contact Cleaner — Quick Reference (Compatibility Table) Electrical contact cleaners remove oxidation + flux residue + dust from live electrical contacts without damaging plastics or leaving residue. They are NOT interchangeable with general degreasers, brake cleaner or MAF (mass air flow) sensor cleaner — each is formulated for a specific job. Common AU products + their correct use below. Product Type Use On Contacts? Notes Electrical Contact Cleaner (CRC 2-26, CO Contact Cleaner) Yes — designed for this Plastic-safe, non-conductive, leaves no residue MAF Sensor Cleaner Yes — but expensive Sensor-specific formula; OK on contacts but overkill Brake Cleaner (chlorinated) No — attacks plastics Damages connectors, insulation + sensor housings Brake Cleaner (non-chlorinated) Caution — test first Plastic-safer but may leave residue General Degreaser (CRC Co Contact) No — leaves residue Residue traps moisture + accelerates corrosion Isopropyl Alcohol (IPA) 99% Yes — manual cleaning Workshop / lab grade only; slow evaporation WD-40 (original) No — leaves oily film Causes dust + dirt to adhere; not for contacts CRC 5-56 Limited — short-term Moisture-displacing but not contact-specific Critical: Always de-energise circuits before cleaning unless the contact cleaner is explicitly rated for live use. Test plastic compatibility on a hidden area first. For automotive sensors (O2, MAF, MAP), use sensor-specific cleaner — generic contact cleaner can deposit silicone that poisons the sensor element. AIMS stocks cleaning chemicals, degreasers, CRC range, WD-40 + silicone spray. What is contact cleaner? Contact cleaner is a fast-evaporating solvent formulated specifically for electrical and electronic equipment — non-conductive when wet, dielectric, residue-free on the formulas designed for precision work, and chemically distinct from a workshop degreaser or brake cleaner. The defining characteristics are dielectric strength (won't conduct electricity), zero residue (won't leave a film that attracts dust or interferes with contact pressure), and fast evaporation (the solvent must clear before equipment is re-energised). Contact cleaner removes oxide layers from contact surfaces, flushes dust and debris from connectors and switches, displaces moisture from accidentally-wetted electronics, and dissolves the carbon film that builds up on heavily-used switches and potentiometers. The performance differential between brands is small for the cleaning step itself; the differential that matters is residue profile, plastic compatibility, dielectric strength and flammability. ⚠️ This is industrial electrical contact cleaner — not contact LENS cleaner If you're looking for contact lens cleaner — the saline or peroxide solution used to clean optical contact lenses — you're in the wrong place. This guide covers industrial electrical contact cleaner. For contact lens cleaning solutions see your optometrist, pharmacy or eye care specialist. The two products are completely unrelated. Industrial electrical contact cleaner is a flammable hydrocarbon solvent that will damage soft contact lens material and burn your eyes. Boston, Menicon Progent, Bausch & Lomb and similar contact lens products are saline-based solutions in completely different chemistry families. Don't confuse the two. Contact cleaner vs brake cleaner vs WD-40 — the disambiguation These three workshop aerosols look similar in the can, smell similar in the air, and partially overlap in chemistry. They are not the same product. Substituting one for another is the single most common mistake in workshop electrical maintenance. Product Residue Designed for Wrong use Contact cleaner None (zero-residue formulas) or conditioning film (DeoxIT-style) Electrical contacts, switches, PCBs, connectors, relays — dielectric, non-conductive when wet Heavy oil/grease removal (not enough solvency); brake friction surfaces (not formulated for the application) Brake cleaner None — dries to nothing Brake dust, oil contamination, weld prep on metal Electronics (some formulas leave conductive residue; attacks plastic enclosures more aggressively) WD-40 original Yes — leaves a thick oily film Water displacement, light lubrication, rust loosening Electrical contacts (oily film attracts dust, can short low-current contacts, interferes with switch action) WD-40 Specialist Contact Cleaner None This is a different product to original WD-40 — chemically a true contact cleaner Don't confuse the blue/yellow original WD-40 can with the WD-40 Specialist contact cleaner SKU The cardinal rule: "WD-40 is a contact cleaner" is wrong unless you mean the WD-40 Specialist range. Original WD-40 (the blue and yellow can) is a light lubricant and water displacement spray — it leaves an oil film that's the opposite of what an electrical contact needs. The WD-40 Specialist Fast Drying Contact Cleaner is the correct product in the WD-40 family for electrical work. For brake-side cleaning work see the Brake Cleaner Guide; for general workshop degreasing see the Industrial Degreaser Guide. The three products live alongside each other in any working shop — they solve different problems with different chemistry. Flammable vs non-flammable contact cleaner Most modern AU contact cleaners are flammable hydrocarbon-based formulas. The non-flammable formulations historically used chlorinated solvents (perchloroethylene, trichloroethylene) — but Cat 1A carcinogen classifications and environmental concerns have shifted most AU products to non-chlorinated chemistry. Type Primary solvent Flammable Typical use Flammable hydrocarbon Hexane, heptane, naphtha, isopropyl alcohol blend Yes AU workshop default. Most CRC, WD-40 Specialist, Molytec, Dy-Mark Protech products. Non-flammable chlorinated Tetrachloroethylene or methylene chloride No Legacy formulations — being phased out. Some specialist industrial SKUs still available. HFE / HFC fluorinated Hydrofluoroether or hydrofluorocarbon No Specialist electronics manufacturing — high cost, very low VOC. The flammability rule: Never spray flammable contact cleaner on hot equipment, near sparks, near open flame, or onto a live high-current circuit where arcing is possible. Always de-energise equipment before cleaning where practical (see AS/NZS 4836 section below). Allow full evaporation before re-energising — minimum 2 minutes for trace amounts on small contacts, 5-15 minutes for heavy application or in cool/humid conditions. The aerosol propellant adds flammability — typically LPG. Even "low-VOC" formulas can be flammable as aerosols. The historical AU naming convention — "CRC CO" (Contact Cleaner Original) and "CRC NF" (Non-Flammable) — referred to flammable and non-flammable variants respectively. Both names still appear in search but the CRC product line has been simplified at retail. The current CRC Contact Cleaner range at AIMS is the standard hydrocarbon (flammable) formula in 150g, 311g, 350g and 400g aerosol sizes. Plastic-safe formulas — what's at risk and which products are tested Contact cleaner solvents attack plastics. Some formulations are "plastic-safe" (tested compatible with most engineering thermoplastics); others will craze, embrittle or soften ABS, polycarbonate, polystyrene and acrylic with prolonged contact. Plastic Risk with standard contact cleaner Notes ABS (relay housings, connector bodies) High Crazes and embrittles. Brief contact usually OK; pooling causes damage. Polycarbonate (display windows, light pipes) High Crazes immediately on contact. Cracks may appear hours later. Polystyrene (low-cost cases) Very high Dissolves rapidly. Avoid all contact. Acrylic (PMMA — clear gauge faces, lenses) Very high Crazes and clouds immediately. Polypropylene (battery cases, terminal blocks) Low Generally resistant. Brief overspray usually fine. HDPE (high-density polyethylene) Very low Resistant. Safe for most applications. PTFE / Teflon Very low Chemically inert. Safe. Nylon (cable ties, harness clamps) Low-medium Generally resistant; some plasticiser leaching with prolonged exposure. PVC (cable insulation, conduit) Medium Brief contact OK; prolonged exposure softens and leaches plasticiser. Rubber (NBR, EPDM seals) Medium NBR swells; EPDM tolerates brief contact. Practical rules: For relay housings, connector bodies, switch housings and any visible plastic — apply contact cleaner sparingly via short bursts, not flood spray. Most damage is from pooling, not brief contact. For acrylic and polycarbonate (gauge faces, display windows, light pipes) — mask before spraying, or use a different cleaning method (isopropyl alcohol on a cotton bud is the safe alternative). The WD-40 Specialist Fast Drying Contact Cleaner publishes a plastic-safe compatibility list. The standard CRC and Dy-Mark formulas list compatibility on the SDS. When in doubt, test on a hidden surface for 60 seconds before treating a visible area. Can I use contact cleaner on live electrical equipment? No — not safely, and not legally for most work in Australia. AS/NZS 3000:2018 Wiring Rules require electrical work to be carried out on de-energised equipment under most circumstances, and the contact cleaner SDS for every major brand explicitly states the product is for use on de-energised equipment only. The combined risk profile is: Flammability: Most contact cleaners are flammable hydrocarbon aerosols. Spraying near a live circuit where arcing is possible — a switch making/breaking, a relay closing, a contactor cycling, a brush motor commutating — creates ignition risk. Dielectric breakdown: Solvent in liquid form has different dielectric properties to solvent fully evaporated. Spraying flooding amounts of solvent across an energised assembly can cause flashover between conductors that would otherwise have safe clearance. Shock risk: The person spraying becomes a path to ground via the wet aerosol stream. Low-voltage circuits are usually safe; mains-voltage and higher are not. The relevant standards: AS/NZS 3000:2018 Wiring Rules — primary AU standard for electrical installation. Work on de-energised equipment is the default; energised work requires specific authorisation and procedure. AS/NZS 4836:2023 Safe working on or near low-voltage electrical installations and equipment — defines minimum approach distances, isolation procedures, PPE for working on or near energised low-voltage equipment. Lock-out / Tag-out (LOTO) procedure under each state's WHS regulations — formal isolation before cleaning work begins. The practical workflow: Isolate the circuit — disconnect, lock out, tag out per company LOTO procedure. Verify dead with a voltage tester rated for the supply voltage. Allow capacitive discharge time on equipment with large filter caps (VFDs, inverters, switchmode power supplies). Apply contact cleaner — spray, work the connector/switch through several actuations, allow full evaporation. Wait — minimum 2 minutes for trace amounts, 15+ minutes for heavy application or in cool conditions. Reconnect and re-energise. Some products advertise "use on energised equipment" — typically chlorinated or HFE/HFC-based non-flammable formulas. Even these require operator judgement: if there's any possibility of arcing during cleaning, isolate first. The convenience of skipping LOTO is rarely worth the consequences. PCB and electronics cleaning — contact cleaner vs IPA Contact cleaner is acceptable for PCB connector cleaning, edge-card contact cleaning, through-hole component contacts and large switch contacts. For delicate SMT (surface-mount technology) work, flux residue removal after soldering, and electronics manufacturing assembly cleaning, isopropyl alcohol (IPA) at 90%+ concentration is the standard cleaner. Application Best cleaner Why Edge-card connector (RAM, expansion cards) Contact cleaner Fast, displaces oxide, removes dust effectively D-SUB / DB9 / DB25 connector pins Contact cleaner Same — designed for this application Audio jack and headphone socket Contact cleaner (or DeoxIT for premium audio) Contact cleaner for routine; DeoxIT D5 leaves conditioning film for vintage gear SMT pad flux residue (after rework) IPA 99% on cotton bud Precision, no excess solvent pooling on neighbouring components Through-hole solder joint cleaning IPA Same precision rationale Switch contacts (relay, toggle, microswitch) Contact cleaner Penetrates internal mechanism via case vents Potentiometer (analog volume knobs) Contact cleaner (or DeoxIT F5 specialty) Spray inside via case vent, work pot through full travel Conformal coated PCBs Manufacturer-approved cleaner only Some conformal coatings dissolved by contact cleaner solvents Optoelectronics (LED, photodiode lenses) IPA + lint-free wipe Avoid solvent residue on optical surfaces The boundary: Contact cleaner is fast and effective for general electrical maintenance — workshop, automotive, motor, switch, connector work. IPA is the precision tool for benchwork on PCBs and electronics manufacturing. For audio equipment restoration, the DeoxIT family (D5, F5, GoldX) is specialty — leaves a conditioning film that protects against re-oxidation. AIMS doesn't currently stock DeoxIT — it's a CAIG niche product available through electronics specialty retailers. Automotive sensors and connectors — and what NOT to spray Contact cleaner is the standard workshop tool for diagnosing and fixing intermittent automotive electrical faults. ECU connectors, body harness connectors, sensor leads, lamp sockets, switch packs and trailer harness terminals all benefit from periodic contact cleaning. Standard automotive contact cleaning procedure: Disconnect the battery — even for low-voltage work. Modern vehicle electronics dislike sudden circuit changes; static-sensitive ECUs can be damaged. Identify the connector — pin count, locking style, retention clip. Spray contact cleaner into both halves of the connector — generous on the male side, brief blast on the female. Mate and unmate the connector several times — the wiping action is what cleans contact surfaces. Final spray, then allow 5-10 minutes for full evaporation. Reconnect, reconnect the battery, verify operation. What NOT to spray with contact cleaner: MAF sensors (Mass Air Flow): The heated platinum-wire or hot-film element is destroyed by hydrocarbon solvent. Use a dedicated MAF sensor cleaner — chemically distinct from contact cleaner, no propellant residue, no oily film. O2 sensors (Oxygen sensors / Lambda): The ceramic element and platinum catalyst layer are contaminated by silicone vapours common in lubricant sprays. Most contact cleaners are OK but never use silicone-based aerosols (window squeak silicone spray, etc.) near O2 sensors. ABS wheel speed sensors and Hall-effect sensors: Generally OK with contact cleaner; the magnetic sensing element is sealed. Optical sensors (cameras, lidar, parking sensors): Solvent leaves film on optics — use IPA + lint-free wipe instead. For brake-side cleaning work — caliper rebuilds, brake dust removal, weld prep on brake-related fabrication — see the Brake Cleaner Guide. Brake cleaner and contact cleaner are not interchangeable: brake cleaner is more aggressive on plastics and not formulated for dielectric strength. Audio equipment cleaning — potentiometers, switches, gold contacts Vintage audio gear restoration, professional audio mixing console maintenance and electric guitar repair all use contact cleaner as a primary maintenance tool. The application is slightly different from automotive work. Potentiometers (volume, tone, EQ pots): The wiper inside a pot ages and oxidises over time, causing scratchiness, dead spots and sudden jumps in level. Spray contact cleaner into the case via the small vent slot (don't pry the case open), then rotate the pot through its full travel 20-30 times to work the cleaner across the carbon track and wiper. Allow 5 minutes evaporation before powering up. Switches: Same approach — work the mechanism through its full range while wet, allow evaporation, retest. Toggle switches, rotary switches and slide switches all respond to this treatment. Gold-plated connectors (RCA, XLR, balanced 1/4"): Use contact cleaner sparingly. Gold doesn't oxidise; if a gold connector is dirty, the contamination is dust, dirt or sulphide tarnish on the plating. Light spray, wipe with lint-free cloth. DeoxIT vs CRC philosophy: The CAIG DeoxIT family (D5 cleaner, D100 concentrate, GoldX gold-treatment, F5 fader lubricant) is the gold standard for premium audio restoration. DeoxIT D5 leaves a conditioning film that protects against re-oxidation; CRC Contact Cleaner dries to zero residue. For routine maintenance, CRC is cheaper and equally effective. For vintage gear where the contacts will sit for years between use, DeoxIT's conditioning film is worth the higher cost. AIMS doesn't stock DeoxIT but can source on request. Motor & electrical equipment cleaning — CRC Lectra Clean Contact cleaner is the right product for connectors, contacts and switch mechanisms. For larger electrical equipment — motor windings, generator coils, contactor stacks, switchgear — the workshop-tier product is the CRC Lectra Clean Electric Motor & Equipment Cleaner in 400g aerosol, or the CRC Lectra Clean 4L TCE-Free for dip cleaning and brush application. Lectra Clean is a heavy-duty electrical-grade degreaser — solvent-based, dielectric, fast evaporating, designed to flush oil, grease, dust and contamination from motor windings without leaving residue or damaging insulation varnish. The 4L TCE-Free variant is specifically formulated without trichloroethylene (a Cat 1A carcinogen) and complies with stricter solvent regulations. When to use Lectra Clean vs contact cleaner: Small connector, switch, relay → contact cleaner. Motor windings, contactor stack, switchgear, large electrical assembly → Lectra Clean. Outdoor electrical equipment, generator coils, transformer bushings → Lectra Clean (more volume capacity). For electric motor selection, lifespan factors and IP rating context, see the Industrial Electric Motor Guide. The CRC Electrical Parts Cleaner Quick Drying 400g is the third option in the AIMS range — sized between contact cleaner and Lectra Clean, suited to medium-scale electrical parts cleaning. Australian WHS, SDS and disposal requirements Contact cleaners are scheduled hazardous chemicals under Australian WHS regulations. Workshops handling them have specific obligations under the model WHS Act and the chemicals regulations. SDS register: A current Safety Data Sheet must be available for every contact cleaner product in use. CRC, WD-40, Molytec, Dy-Mark and other major suppliers publish current SDS online. AIMS can supply SDS documentation on request. Solvent exposure standards (Safe Work Australia): Solvent WES TWA (8-hr) WES STEL (15-min) Notes n-Hexane 20 ppm — Common contact cleaner solvent. Peripheral neuropathy risk with chronic high exposure. n-Heptane 400 ppm 500 ppm Lower toxicity than hexane. Common replacement. Isopropyl alcohol 400 ppm 500 ppm Used as solvent and propellant. Petroleum naphtha (light) — — Variable composition. Check SDS for specific WES. Tetrachloroethylene (legacy NF) 50 ppm 200 ppm Cat 1A carcinogen. Used in some legacy non-flammable formulas. Ventilation: Use contact cleaner in ventilated areas. For prolonged or enclosed-space use, local exhaust ventilation or organic-vapour respiratory protection is required — see the Respirator Guide for AS/NZS 1716 Type A or AB cartridge selection. PPE: Solvent-resistant nitrile gloves, safety glasses with side shields, organic-vapour respirator for enclosed-space use. Disposal: Non-chlorinated contact cleaner waste is typically controlled waste in most AU jurisdictions — licensed disposal required, not general waste, not the drain. Aerosol cans must be fully discharged before recycling; most councils accept fully-empty aerosols in metal recycling streams. Chlorinated formula waste is hazardous waste — licensed liquid waste contractor required. AU brand guide — CRC, WD-40 Specialist, Molytec, Dy-Mark, DeoxIT, Ambersil The AU contact cleaner market splits clearly between industrial supplier tier (CRC, WD-40 Specialist, Molytec, Dy-Mark Protech — AIMS stocked) and specialty niches (DeoxIT for audio, Ambersil for UK industrial, Boston/Bausch for contact lens — wrong product class). Brand Tier Range AIMS stocked? CRC Industrial flagship Contact Cleaner (4 sizes 150g/311g/350g/400g), Lectra Clean motor cleaner, Electrical Parts Cleaner Quick Drying ✅ Full range WD-40 Specialist Industrial Fast Drying Contact Cleaner 290g — chemically distinct from original WD-40 ✅ Yes Molytec Industrial AU M866 Electric Component and Contact Cleaner Aerosol 300g ✅ Yes Dy-Mark Protech Industrial AU Contact Cleaner Flammable 350g ✅ Yes DeoxIT (CAIG) Specialty audio premium D5, D100, GoldX, F5 — leaves conditioning film Source on request — electronics specialty retailers usually stock Ambersil UK industrial Various electrical-grade cleaners Not stocked — source on request Boston / Bausch & Lomb / Menicon Contact lens (wrong product class) Saline-based contact lens cleaning solutions Not stocked — see optometrist Selleys / Penrite / Repco / Bunnings own-brand Consumer DIY Single-can retail Not stocked — direct to consumer retailers CRC dominates the AU industrial market — the Contact Cleaner four-size lineup (150g for occasional, 311g for general workshop, 350g for medium-use, 400g for high-volume) covers nearly every workshop scenario. WD-40 Specialist Fast Drying Contact Cleaner is the chemically-similar credible Tier 2 alternative — important not to confuse with the famous blue/yellow original WD-40 which is NOT a contact cleaner. Molytec M866 is an AU-formulated industrial option. Dy-Mark Protech is the entry-tier industrial option. AIMS-stocked range deep dive Product Size Price guide Best for CRC Contact Cleaner 150g 150g $14.73 Occasional use, kit bag, low-volume electrician CRC Contact Cleaner 311g 311g $31.15 General workshop, medium volume CRC Contact Cleaner 350g 350g $22.00 General workshop, AU standard size CRC Contact Cleaner 400g 400g $26.59 High-volume workshop, fleet maintenance WD-40 Specialist Fast Drying Contact Cleaner 290g $21.36 WD-40 ecosystem buyers; plastic-safe formula Molytec M866 Electric Component and Contact Cleaner 300g $13.89 AU industrial entry tier, value option Dy-Mark Protech Contact Cleaner Flammable 350g $17.44 AU industrial entry tier CRC Lectra Clean Electric Motor & Equipment Cleaner 400g aerosol $28.34 Motor windings, contactor stacks, large electrical assemblies CRC Lectra Clean TCE-Free 4L 4 litres $321.26 Dip cleaning, brush application, bulk motor servicing CRC Electrical Parts Cleaner Quick Drying 400g $16.44 Medium-scale electrical parts cleaning between contact cleaner and Lectra Clean Browse the full contact cleaners collection or the broader parts washers and cleaners range for adjacent products. Common contact cleaner mistakes Mistake What goes wrong Fix Using original WD-40 (blue/yellow can) as a contact cleaner Heavy oil film attracts dust, shorts low-current contacts, sticks switches Use a true contact cleaner. WD-40 Specialist Fast Drying Contact Cleaner is fine; original WD-40 is not. Spraying on energised equipment Fire risk (flammable), flashover risk, shock risk, AS/NZS 3000 non-compliant De-energise per AS/NZS 4836 + LOTO. Re-energise after evaporation. Flooding plastic enclosures Crazing, embrittlement, eventual cracking of ABS/PC/polystyrene Short bursts, not flood spray. Use plastic-safe formula for visible plastics. Re-energising too quickly Solvent vapour ignites in arcing contact; flashover 2 minutes minimum for trace amounts; 5-15 minutes for heavy application. Spraying MAF sensor with contact cleaner Destroys hot-wire sensing element Use dedicated MAF sensor cleaner only. Using brake cleaner on electronics Conductive residue (some formulas), aggressive plastic attack Use contact cleaner. Brake and contact cleaners are not interchangeable. Spraying on optical sensors / camera lenses Residue on optics; clouding IPA + lint-free wipe. Skipping the actuation step Cleaner sits in the connector but doesn't reach the contact wiping surface Spray, then mate/unmate connector several times to wipe contacts clean. Selection checklist Is this electrical/electronic work? Yes → contact cleaner. No → use brake cleaner or degreaser (see Brake Cleaner Guide / Industrial Degreaser Guide). Is the equipment de-energised? Required for almost all work per AS/NZS 3000. LOTO before spraying. Plastic-rich enclosure? Choose a plastic-safe formula (WD-40 Specialist or CRC standard with light application). Audio equipment / vintage gear? CRC Contact Cleaner for routine; DeoxIT D5 for premium conditioning (source on request). Motor windings or large electrical assembly? CRC Lectra Clean rather than contact cleaner. MAF sensor? Dedicated MAF cleaner, not contact cleaner. SMT board / PCB rework? IPA 99% rather than contact cleaner for precision work. Volume more than 2 cans/week? Move to the 400g size or talk to AIMS about bulk supply. For supply, SDS documentation or technical selection advice, contact the AIMS team or call (02) 9773 0122. Frequently Asked Questions What is contact cleaner? Contact cleaner is a fast-evaporating dielectric solvent designed to clean electrical contacts, switches, relays, connectors and electronic assemblies. Key properties: non-conductive when wet, zero residue (on residue-free formulas), fast evaporation, dielectric strength. Most modern AU contact cleaners are hydrocarbon-based (flammable); some legacy formulas are chlorinated (non-flammable). Distinct from brake cleaner (different application focus) and original WD-40 (which leaves an oil film and is not a contact cleaner). Is contact cleaner the same as contact LENS cleaner? No — completely different products in completely different chemistry families. Industrial contact cleaner is a flammable hydrocarbon solvent for electrical and electronic equipment. Contact lens cleaner is a saline or peroxide-based ophthalmic solution. Don't use industrial contact cleaner on contact lenses — it will damage the lens material and burn your eyes. For contact lens cleaning, see your optometrist or pharmacy. Can I use contact cleaner on live electrical equipment? No — not safely and not legally for most AU electrical work. AS/NZS 3000:2018 Wiring Rules require work on de-energised equipment under most circumstances. Contact cleaner SDS documentation for all major brands states use on de-energised equipment only. The combined risk is flammability (most formulas are flammable hydrocarbons), dielectric breakdown (liquid solvent across an energised circuit can cause flashover), and shock risk. Isolate per AS/NZS 4836 and LOTO, clean, allow evaporation, re-energise. Does contact cleaner damage plastic? Depends on the plastic and the formula. ABS, polycarbonate, polystyrene and acrylic can craze and embrittle with prolonged contact cleaner exposure. HDPE, polypropylene, PTFE and nylon are largely resistant. Some products (WD-40 Specialist Fast Drying, certain CRC formulas) are tested plastic-safe. Practical rule: short bursts not flood spray for plastic enclosures, mask acrylic/polycarbonate surfaces, test on a hidden surface if unsure. What's the difference between flammable and non-flammable contact cleaner? Flammable contact cleaners use hydrocarbon solvents (hexane, heptane, naphtha, IPA blends) plus aerosol propellant — most modern AU products. Non-flammable contact cleaners historically used chlorinated solvents (perchloroethylene, trichloroethylene) but these are Cat 1A carcinogens and most have been phased out. Specialist non-flammable HFE/HFC fluorinated cleaners exist for electronics manufacturing but cost significantly more. AU workshops default to flammable hydrocarbon formulas with proper ventilation and ignition control. Can I use WD-40 as a contact cleaner? Original WD-40 (blue and yellow can) — no. It leaves a thick oil film that attracts dust, sticks switch mechanisms and can short low-current contacts. WD-40 was designed as a water-displacement spray and light lubricant, not an electrical contact cleaner. WD-40 Specialist Fast Drying Contact Cleaner — yes. That's a chemically distinct product in the WD-40 Specialist range, formulated specifically for electrical work, fast-evaporating with no residue. Don't confuse the two. Is CRC Contact Cleaner safe on circuit boards? Yes for general PCB connector and contact cleaning. CRC Contact Cleaner dries to zero residue and is non-conductive when wet. For precision SMT (surface-mount) work or flux residue removal after rework, isopropyl alcohol 99% is preferred — better precision, no excess solvent pooling near sensitive components. For conformal-coated PCBs, check the conformal coating manufacturer's compatibility before spraying — some coatings dissolve with contact cleaner solvents. What's the difference between contact cleaner and brake cleaner? Different design priorities. Contact cleaner is formulated for electrical work — dielectric strength, plastic compatibility, zero residue for contact pressure preservation. Brake cleaner is formulated for brake surface cleaning — aggressive solvency on oil and brake dust, often more aggressive on plastics, not formulated for dielectric strength. Don't substitute brake cleaner for contact cleaner in electronics — risk of conductive residue (some formulas) and plastic damage. Don't substitute contact cleaner for brake cleaner on caliper assemblies — not aggressive enough on brake fluid contamination. Can I use contact cleaner on car ECU connectors? Yes — contact cleaner is the standard workshop tool for ECU connector cleaning. Procedure: disconnect the battery first (modern ECUs dislike sudden circuit changes), spray contact cleaner into both halves of the connector, mate and unmate several times to wipe contacts, final spray, allow 5-10 minutes evaporation, reconnect battery and verify operation. Effective for intermittent fault diagnosis caused by corroded, dirty or oxidised connector pins. Is contact cleaner safe on a MAF sensor? No — use a dedicated MAF sensor cleaner. Mass Air Flow sensors use a heated platinum-wire or hot-film element that is destroyed by hydrocarbon solvents. Standard contact cleaner formulas, brake cleaner and degreaser all damage MAF sensors. CRC Mass Air Flow Sensor Cleaner is chemically distinct — no propellant residue, no oily film, formulated specifically for the hot-wire element. DeoxIT vs CRC Contact Cleaner — which is better? Different design philosophies. CRC Contact Cleaner dries to zero residue — fast, cheap, suited to routine workshop maintenance and connectors that will be cycled or reused soon. DeoxIT D5 leaves a conditioning film that protects against re-oxidation — preferred for vintage audio gear, premium switches, and contacts that will sit unused for months or years. DeoxIT D5 is the audio restoration gold standard but costs 4-6x as much per can as CRC. For routine work, CRC is the better economic choice. AIMS doesn't currently stock DeoxIT — source through electronics specialty retailers. How long should I wait before re-energising after spraying contact cleaner? Minimum 2 minutes for trace amounts on small contacts. 5-15 minutes for heavy application, cool or humid conditions, or large enclosed assemblies. The risk of re-energising too soon is solvent vapour igniting in arcing contacts at switch-on (flashover) and dielectric performance degradation while solvent is still present. When in doubt, wait longer — there is no benefit to rushing this step. What is CRC CO and CRC NF — are they the same product? Legacy AU/NZ naming convention. "CO" originally meant "Contact Cleaner Original" — the standard formulation. "NF" meant "Non-Flammable" — the chlorinated solvent variant. The current AIMS-stocked CRC Contact Cleaner is the standard hydrocarbon (flammable) formula in 150g/311g/350g/400g sizes. The non-flammable chlorinated variant has largely been phased out due to Cat 1A carcinogen classification. The keywords "CRC CO" and "CRC NF" still appear in search but reflect legacy product naming. Can I use contact cleaner on a keyboard? Generally not the right tool. Mechanical keyboard switches are sealed; contact cleaner can pool inside the case and craze plastic. Membrane keyboards are even worse — the conductive trace layer can be damaged. Better approach: compressed air to blow out debris, isopropyl alcohol 99% on a cotton bud for stuck keys, full disassembly for severe contamination. Contact cleaner is overkill and risky for routine keyboard maintenance. What's the workplace exposure standard for contact cleaner solvents in Australia? Safe Work Australia exposure standards for common contact cleaner solvents: n-Hexane 20 ppm TWA (peripheral neuropathy risk), n-Heptane 400 ppm TWA / 500 ppm STEL, Isopropyl alcohol 400 ppm TWA / 500 ppm STEL, Tetrachloroethylene (legacy NF) 50 ppm TWA / 200 ppm STEL (Cat 1A carcinogen). Use contact cleaner in ventilated areas; for prolonged or enclosed-space use, organic-vapour respiratory protection is required. Share: Share on Facebook Share on X Pin on Pinterest Previous Post Brake Cleaner Guide: Chlorinated vs Non-Chlorinated vs Water-Based, Safety & Selection Next Post Parts Washer Guide: Solvent vs Bioremediation, CRC SmartWasher & Purasolve Workshop Selection Related Posts bordo Reciprocating Saw Blade Guide: TPI Selection, Bi-Metal vs Carbide, Wood/Metal/Demolition Blade Choice May 11, 2026 AIMS Industrial bsp Grease Nipple & Zerk Fitting Guide: Thread Sizes, Types, BSP vs UNF & How to Identify May 11, 2026 AIMS Industrial bolt-extractor Bolt Extractor Guide: Easy-Outs, Spiral Flute, Multi-Spline & Bolt Extractor Sockets May 11, 2026 AIMS Industrial
Read moreBrake Cleaner Guide: Chlorinated vs Non-Chlorinated
Brake cleaner: chlorinated vs non-chlorinated vs water-based formulas, the deadly welding combination, what damages paint and plastic, AU brands and bulk supply.
Read morePenetrating Oil & Spray Lubricants: What to Use and When
Need to pick the right Loctite product? Our Loctite Application Guide maps every grade to its job.
Read more
Weld Like A Pro With CRC Weld-Aid®
The new and improved Weld-Aid® product range is “engineered to improve your welding productivity”, so you can do easier and cleaner welds. They are specifically designed for MIG welding. Nozzle-Kleen Nozzle-Dip HD Nozzle-Kleen #2 Weld-Kleen Weld-Kleen HD Weld-Kleen Anti-Spatter 350 Lube-Matic Wire Kleener and Lubricant Kleener Pads (Red) Lube Pads (Black) Combo Pack (Red and Black) Nozzle-Kleen This product group consists of the Nozzle Dip HD and Nozzle Kleen #2. These are engineered to prevent, reduce and remove spatter build-up on your welder nozzles, tips and diffusers, so you can use them longer. Nozzle-Dip HD It will neither clog your torch, nor contaminate your weld like petroleum jelly (from which most conventional nozzle dips are made), thanks to its unique water-based gel formulation. More benefits: Effectively cools your nozzles and tips Reduces spatter build-up Works on both hot and cold torches Does not drift into the liner Water-based Biodegradable Non-flammable Non-hazardous Non-flashing Non-toxic Paintable Buy the CRC Nozzle-Dip HD. Nozzle-Kleen #2 All you need is a light spray of "the world’s best-selling anti-spatter aerosol” on the nozzle, and you can start welding right away. More benefits: Can be used even on surfaces to be welded Spatter can easily be wiped away No need to scrape or grind the finish Leaves less smoke and odor Dries quickly Does not contain fluorocarbons Non-flammable Paintable Buy the CRC Nozzle-Kleen #2. Weld-Kleen This product group consists of the Weld-Kleen HD and Weld-Kleen Anti-Spatter 350. Use them if you want to spend more time welding and less time on grinding and cleaning up spatter. Weld-Kleen HD It protects your welder’s parts as well as your clamps, tooling and other fixtures with its heavy-duty base metal treatment. More benefits: Accepts pre-heating Dries quickly Non-flammable Paintable Buy the CRC Weld-Kleen HD. Weld-Kleen Anti-Spatter 350 It has a “superior performance versus other water-based anti-spatters". More benefits: Available in non-pressurized and pressurized (aerosol) dispensers Spatter just wipes away (no need to scrape and grind) Effective for use in torch blow-down systems Ready to use, no need to mix Environmentally friendly Biodegradable Non-hazardous Non-toxic Paintable Buy the CRC Weld-Kleen Anti-Spatter 350. Lube-Matic This product group consists of the Wire Kleener and Lubricant and Kleener Pads. Use them if you want to improve the lifespan of your tips and liners for up to 300%. Wire Kleener and Lubricant This easy-to-use welding wire cleaner and lubricant is designed to promote smoother wire feeding (specifically, fabricated and mild steel wires) by reducing drag and friction from the feeder to your welder. It is applied to Kleener Pads as needed (see below). More benefits: Decreases downtime caused by wire jamming Helps feed fabricated and mild steel wires Reduces wire drag by up to 60% Removes dirt Cuts rusts Buy the CRC Wire Kleener and Lubricant. Kleener Pads (Red) and Lube Pads (Black) Applied with the Wire Kleener and Lubricant, these pads will help keep your wires thoroughly cleaned and lubricated to maximise your torch’s effectiveness and lifespan. You can buy them separately or as a bundle. More benefits of Kleener Pads (Red): Reduce burnback by up to 50% Effective for all wire types Excellent with aluminium Buy the CRC Kleener Pads (Red). More benefits of Lube Pads (Black): Effective pre-treatment for smoother feeding of wires with poor cast, helix and rust Good for long feed liners Best used for the pre-treatment of wires Can be used on all types of steel wires (but not recommended with aluminium) Buy the CRC Lube Pads (Black). *Need help with a purchase decision? Contact us directly via chat or send an email to sales@aimsindustrial.com.au or call us on (02) 9773 0122 Need welding gear? The AIMS Welding collection covers everything from entry-level inverters to multiprocess welders. AIMS stocks a comprehensive Lubrication collection — Loctite, Anglomoil, Macnaught, Triple7 and CRC products. Share: Share on Facebook Share on X Pin on Pinterest Previous Post Does CRC Evapo-Rust Actually Work? Next Post Choosing the Right Drive Size for Sockets Looking for butt weld fittings? Our butt weld fittings range covers the common sizes and brands. Related Posts bordo Reciprocating Saw Blade Guide: TPI Selection, Bi-Metal vs Carbide, Wood/Metal/Demolition Blade Choice May 11, 2026 AIMS Industrial bsp Grease Nipple & Zerk Fitting Guide: Thread Sizes, Types, BSP vs UNF & How to Identify May 11, 2026 AIMS Industrial bolt-extractor Bolt Extractor Guide: Easy-Outs, Spiral Flute, Multi-Spline & Bolt Extractor Sockets May 11, 2026 AIMS Industrial People Also Ask — Weld Aid Anti-Spatter Products Q: What does weld spatter protection spray do? Weld anti-spatter spray is applied to the workpiece and surrounding areas before welding to prevent molten metal droplets from adhering to the surface. After welding, spatter falls away cleanly instead of bonding to the steel, dramatically reducing post-weld clean-up time and protecting adjacent surfaces from surface contamination. Q: Can weld anti-spatter be used inside the MIG gun nozzle? Yes, nozzle-dip anti-spatter products are specifically formulated for applying to or dipping the MIG gun nozzle to prevent spatter build-up inside the nozzle and on the contact tip. This extends nozzle and tip life, maintains shielding gas flow and reduces downtime for nozzle cleaning during extended welding operations. Q: Is weld anti-spatter spray safe to use on stainless steel? Standard petroleum or silicone-based anti-spatter products should not be used on stainless steel that will be painted or coated afterward, as silicone contamination causes fish-eye defects in coatings. Water-based or silicone-free anti-spatter products are available specifically for stainless steel applications. Q: How should anti-spatter spray be applied for best results? Apply a thin, even coat to the workpiece surface before welding, allowing it to flash off briefly if specified by the manufacturer. Avoid spraying directly onto the weld zone or joint gap as this can contaminate the weld and cause porosity. Nozzle dip products should coat the inside of the nozzle without blocking the gas outlet holes.
Read more
Does the CRC Evapo-Rust Really Work
CRC Evapo-Rust is a best-seller for many reasons. In this article, we answer these questions: What’s your opinion about the product? Does the CRC Evapo-Rust really work? How does it work? How much do I need to use? Do I need to fully submerge the whole item, or just the rusted surfaces? Will it corrode the rusted metal and other non-metal components? How long do I need to soak the rusted metal in it? Do I need to sand or scrub the rusted item after soaking it in? Can I reuse the liquid solution? Is it flammable? Is it harmful, hazardous and toxic? Feedback from users in real-life applications Disclaimer: The information compiled here is based on actual experience and diligent research. Nevertheless, it should not be treated as professional advice. As always, read the label and proceed with caution. What’s your opinion about the product? One Friday afternoon, our Sales Manager, Sam, soaked a bunch of rusted sprockets in Evapo-Rust solution. He took photos of the progress of what happened after soaking them (1) after two hours and (2) over the weekend. (He also brought a pair of pliers riddled with saltwater rust, which we also covered further below.) Quick verdict: Evapo-Rust works! Rusts gone. Here are the rusted sprockets before soaking. As you can see, some of them are heavily rusted on the surface, while some are not: Here they are after being soaked in pure Evapo-Rust after two hours: Comparison of the “untreated” (top-half) and “treated” (bottom-half) after being soaked for two hours: Here they are after being soaked into pure Evapo-Rust over the weekend: Most came off visibly “rust-free” after some thorough wiping, although Sam had to lightly steel-brush a few ones “to speed up the process” and get the same rust-free result. According to Sam: “I used CRC Evapo-Rust with some great results. The photos are time-lapse as well to show the different results. In short, the longer we leave product in solution, the better the results.” “Rusty sprockets will pose a problem if they are installed as they are. They will work, but the addition of grease will contaminate the lubricant and add to chain and sprocket wear. The trick is to keep the lubricant clear of any contaminants and prolonging the life of all wearing parts. Rust also destroys surface hardness and will accelerate wear." Does the CRC Evapo-Rust really work? The quick answer is a yes. It is designed to do one job -- remove rust -- and it does it well, provided, of course, that you use it properly and according to instruction. Here’s the CRC Evapo-Rust in action: It “effectively removes even deep rust on all types of mild steels and iron”. According to the technical data sheet, you should use the product as follows: Pre-clean item to remove oil and dirt. Rinse item and immerse item fully in Evapo-Rust for 20 minutes. Check progress periodically. Once rust is removed, rinse the item with water. To prevent re-rusting, simply dip the item back in Evapo-Rust solution and allow it to dry. Note: Deeply rusted parts (5 mm or deeper) may require overnight soaking. Evapo-Rust can be used over and over until performance drops off. When ready to dispose of spent solution, only the iron content of the solution will dictate disposal method. In most cases, it can be safely put down the drain. How does it work? EVAPO-RUST® works through selective chelation. This is a process in which a large synthetic molecule forms a bond with metals and holds them in solution. Most chelating agents bind many different metals. The active ingredient in EVAPO-RUST® bonds to iron exclusively. It can remove iron from iron oxide but is too weak to remove iron from steel where the iron is held much more strongly. Once the chelating agent has removed the iron, a sulfur-bearing organic molecule pulls the iron away from the chelator and forms a ferric sulfate complex which remains water soluble. This frees the chelating agent to remove more iron from rust. More tips from the technical data sheet c/o crceurope.com: If EVAPO-RUST® is used below 15°C, cleaning times will be extended. Warmer temperatures will improve rust removal capabilities. Store cool (above 0°C) and dry. How much do I need to use? That depends a lot on: Which product you are using: the spray gel or the liquid solution How many items you want to de-rust How rusted are the items in question How long you "soak” the items in its chemical While both the spray gel and liquid solution basically have the same formulation, the spray gel “clings” to the surface of the item in question so there’s no need to soak it. If you have the liquid solution, use it pure and undiluted. It’s ready to use right off the bottle, and there is no need to mix with water. In Sam’s experiment, he took a 5-litre Evapo-Rust solution container to fully submerge around 100 kilograms of sprockets of various sizes. (Fun fact: According to Microsoft Word, 100 kilograms is around the weight of an average professional basketball player.) Sam said he was able to “salvage back in the container about ¾ of the Evapo-Rust solution”. Do I need to fully submerge the whole item, or just the rusted surfaces? You only need to submerge the rusted areas. If the whole item is badly rusted all over, then yes, you’ll want to submerge it altogether, especially if it’s badly eaten by rust just like the tools and components in this video by CRC NZ: Will it corrode the rusted metal and other non-metal components? EVAPO-RUST® is safe to use on (not harmful to): Aluminium Brass Copper Non-oxide-based paints Plastics PVCs Rubber Vinyl In fact, Sam has another example, this time with his rusty pliers -- that he uses for fishing, so it is riddled with saltwater rust -- that are seized up and wouldn't spring open. After soaking them in 're-used' EVAPO-RUST® solution for two hours a soaking and a some mild cleaning up with a wire brush, he was happy with the result: How long do I need to soak the rusted metal in it? That depends a lot on how badly rusted parts are. In Sam’s experiment, the sprockets’ surfaces were significantly “rust-free” after a two-hour soak in pure EVAPO-RUST® but note that they are not heavily rusted to begin with. (He waited it out for another two days.) Do I need to sand or scrub the rusted item after soaking it in? Sam had to lightly brush off a few sprockets to achieve the desired result. Can I reuse the liquid solution? According to CRC’s video above, the technical data sheet and Sam's pliers example, yes you can reuse the solution “until the performance drops off”. Is it flammable? It is “non-caustic”, “non-flammable” and “contains no flammable materials”. We reckon the same is true for the liquid solution. However, keep in mind that it’s still a chemical product best kept away from obvious heat sources and open flames. Is it harmful, hazardous and toxic? Please use common sense and observe safety precautions when using the product, but for the record: According to the backside label of both the spray gel and liquid solution, they are “not classified as toxic material”, do not contain “acids, alkalis and petroleum” and are not harmful to the user and the environment. According to the safety data sheets of both the spray gel and liquid solution, they are “not classified as hazardous” as per Safe Work Australia criteria. According to the technical data sheet, they are “safe to use” and contain “no acids, hazardous air pollutants (HAPs) and volatile organic compounds (VOCs)”. Both have no strong fumes and odours that can cause irritation under normal conditions. Of course, it’s always best to take extra precautions if you have relevant pre-existing allergies and respiratory conditions. It has no food safety certification, although you can use it on parts of food equipment as long as it doesn’t directly come into contact with the food itself. Make sure to wash it off and dry completely before use. Buy Evapo-Rust now. Feedback: Ken H from Perth shared his experience with the CRC Evapo-Rust: "I have used it on a couple of things, and have had brilliant results. I have just restored two old motorcycles to "as new" condition, and for most of the components a wire buff or grit blasting worked well. But there are a few components which were too delicate for that. One in particular was the tool box on my 1963 A10 BSA. The sheet steel it is made from is too old/delicate to use grit blasting. The corners and confines make the wire wheel either inaccessible, or dangerous, as it catches on edges. Any acidic medium (if left too long) would dissolve it. Now, these tool boxes are NO LONGER AVAILABLE. They make them in India, and they are either poor quality or just don't fit. Too hit and miss. A second hand one in terrible condition (worse than mine was) sells for $300 - $400 AUD. So I HAD to save mine. Evapo-Rust was safe, and can be left as long as you like, as it DOES NOT DISSOLVE BASE METAL. The greatest point to remember is that Evapo-Rust saturates during use, and it does not convect / self-circulate. So, it will turn black (in areas close to the rust surface) as it absorbs rust, and then stays there against the surface / will not absorb any more. Once saturated, it is no longer of any use = dispose of it. The best way is to either "stir / circulate" the liquid, or (in a corner where the liquid is "black" and thus saturated) drawn off with a syringe and disposed of / allow unsaturated liquid to continue to work. See the attached pictures. Before and after: That tool box had sat on that bike for 40 years and had bad chrome with rust pitting under it, rust inside. Evaopo-Rust cleaned it enough for priming and painting. I also used it on a Triumph Stag bumper (very hard to get, they make replacements which are nowhere near as good as the original) to remove rust from the rear of it before preservation. The outside is chrome, but the inside barely treated, so they rust. The Evapo-Rust removes the inside surface rust, with no damage to existing chrome. It is a brilliant product. Share: Share on Facebook Share on X Pin on Pinterest Previous Post Choosing the Right Tap for Your Drilling Application Next Post Weld Like A Pro With CRC Weld-Aid® Related Posts bordo Reciprocating Saw Blade Guide: TPI Selection, Bi-Metal vs Carbide, Wood/Metal/Demolition Blade Choice May 11, 2026 AIMS Industrial bsp Grease Nipple & Zerk Fitting Guide: Thread Sizes, Types, BSP vs UNF & How to Identify May 11, 2026 AIMS Industrial bolt-extractor Bolt Extractor Guide: Easy-Outs, Spiral Flute, Multi-Spline & Bolt Extractor Sockets May 11, 2026 AIMS Industrial People Also Ask — Does the CRC Evapo-Rust Really Work Q: How does Evapo-Rust work to remove rust? Evapo-Rust uses selective chelation — a process where chelating agents bond to iron oxide (rust) molecules and hold them in solution, lifting them off the base metal without attacking the underlying iron or steel. It is water-based, non-toxic, non-flammable, and biodegradable. Unlike acid-based rust removers, it does not etch bare metal, making it safer for use on precision parts. Q: How long should I soak parts in Evapo-Rust? Light rust (surface oxidation): 30 minutes to 2 hours. Moderate rust: 4–8 hours. Heavy rust with pitting: overnight or up to 24 hours. Agitation (brushing or sloshing every hour) speeds up the process. Parts must be fully submerged. The solution turns dark brown as it absorbs rust — it can be reused until it stops working effectively (typically after removing approximately 300 g of rust per litre). Q: What is the best CRC product for long-term rust protection? For long-term storage protection, CRC SP-400 or CRC Dry Film PTFE provide durable barrier protection. For active corrosion prevention in wet or marine environments, CRC SP-350 (a heavy wax-based inhibitor) is preferred. CRC 2-26 is excellent for moisture displacement and contact protection but provides limited long-term film durability — apply monthly in harsh environments. Q: Can I use Evapo-Rust on chrome or aluminium parts? Evapo-Rust is safe on steel and iron and will not damage chrome plating, aluminium, copper, brass, solder, or most plastics during normal soak times (up to 24 hours). However, it is not effective at removing rust from aluminium — aluminium forms aluminium oxide, not iron oxide, and the chelating agents in Evapo-Rust are selective to iron. For aluminium oxidation, use an aluminium-specific cleaner.
Read more